四年级学的介词英语

      ( )1.___ the afternoon of May, we visited the old man. 　　A. On B. At C. In 　　( )2.Many people work ___ the day and sleep ___ night. 　　A. on ; at B. in ; in C. in ; at 　　( )3.He speaks Japanese best ____ the boy s...

里面有四年级英语第一学期所有课程，如果有听不懂的，可以再听一遍，有重复版

小学四年级英语上册

Welcome to my english 4.There’s a lot of knowledge here.Come and study.

译林小学英语四年级